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From: Thara Gopinath <thara.gopinath@linaro.org>
To: daniel.lezcano@linaro.org, rui.zhang@intel.com, robh+dt@kernel.org
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [RFC PATCH 3/4] thermal:core:Add genetlink notifications for monitoring falling temperature
Date: Fri, 10 Jul 2020 09:51:53 -0400	[thread overview]
Message-ID: <20200710135154.181454-4-thara.gopinath@linaro.org> (raw)
In-Reply-To: <20200710135154.181454-1-thara.gopinath@linaro.org>

Add notification calls for trip type THERMAL_TRIP_COLD when temperature
crosses the trip point in either direction.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
---
 drivers/thermal/thermal_core.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 750a89f0c20a..e2302ca1cd3b 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -429,12 +429,21 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
 		tz->ops->get_trip_hyst(tz, trip, &hyst);
 
 	if (tz->last_temperature != THERMAL_TEMP_INVALID) {
-		if (tz->last_temperature < trip_temp &&
-		    tz->temperature >= trip_temp)
-			thermal_notify_tz_trip_up(tz->id, trip);
-		if (tz->last_temperature >= trip_temp &&
-		    tz->temperature < (trip_temp - hyst))
-			thermal_notify_tz_trip_down(tz->id, trip);
+		if (type == THERMAL_TRIP_COLD) {
+			if (tz->last_temperature > trip_temp &&
+			    tz->temperature <= trip_temp)
+				thermal_notify_tz_trip_down(tz->id, trip);
+			if (tz->last_temperature <= trip_temp &&
+			    tz->temperature > (trip_temp + hyst))
+				thermal_notify_tz_trip_up(tz->id, trip);
+		} else {
+			if (tz->last_temperature < trip_temp &&
+			    tz->temperature >= trip_temp)
+				thermal_notify_tz_trip_up(tz->id, trip);
+			if (tz->last_temperature >= trip_temp &&
+			    tz->temperature < (trip_temp - hyst))
+				thermal_notify_tz_trip_down(tz->id, trip);
+		}
 	}
 
 	if (type == THERMAL_TRIP_CRITICAL || type == THERMAL_TRIP_HOT)
-- 
2.25.1


  parent reply	other threads:[~2020-07-10 13:52 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-10 13:51 [RFC PATCH 0/4] thermal: Introduce support for monitoring falling temperature Thara Gopinath
2020-07-10 13:51 ` [RFC PATCH 1/4] dt-bindings:thermal:Add cold trip point type Thara Gopinath
2020-07-13 15:05   ` Daniel Lezcano
2020-07-13 17:01     ` Thara Gopinath
2020-07-13 17:03       ` Daniel Lezcano
2020-07-10 13:51 ` [RFC PATCH 2/4] thermal: Add support for cold trip point Thara Gopinath
2020-07-10 13:51 ` Thara Gopinath [this message]
2020-07-15  8:46   ` [RFC PATCH 3/4] thermal:core:Add genetlink notifications for monitoring falling temperature Zhang Rui
2020-07-15 23:15     ` Thara Gopinath
2020-07-10 13:51 ` [RFC PATCH 4/4] thermal: Modify thermal governors to do nothing for "cold" trip points Thara Gopinath
2020-07-15  8:35   ` Zhang Rui
2020-07-15 23:13     ` Thara Gopinath
2020-07-13 15:03 ` [RFC PATCH 0/4] thermal: Introduce support for monitoring falling temperature Daniel Lezcano
2020-07-14 13:49   ` Zhang Rui
2020-07-14 21:39     ` Thara Gopinath
2020-07-15  8:27       ` Zhang Rui
2020-07-15 23:10         ` Thara Gopinath

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